Sounds like your onto a great start. As for the anxiety issues, I don't have any articles for you but can speak from experience.
I've been overweight for most of my life but over the past 2 years I started to become quite anxious (feeling like everyone is looking at you etc).
Anyway, in short, eating primally for the past 6 months has really helped and I definitely feel much more confident than before.
I'm not sure whether to attribute this to primal food or whether it is as a result of some weight loss.
Either way Primal living is awesome and I'm definitely not going back!